Select the correct word from the words in bracket to complete the sentence :
Salts ionize in aq. soln. on passage electric current to give ____[negative/positive ]ions other `H^(+)` ions

Select the correct word from the words in bracket to complete the sentence : The electrode at which anions donate excess electrons and are oxidized to neutral atoms is the ________[anode/cathode]

Select the correct word from the words in bracket to complete the sentence : According to Arrhenius's theory the amount of electricity conducted by the electrolyte depends on the __________[nature/concentration]of the ions is solution.

Select the correct answer from the choice in bracket to complete each sentence: An example of a monoatomic molecule is _______ [hydrogen/helium).

Select the correct answer from the choice in bracket to complete each sentence. Matter is added or removed during a - [chemical/physical] change

Select the correct answer from the choice in bracket to complete each sentence: The reactive element from the two monoatomic elements is _______ [neon/silicon].

Select the correct word from the words in bracket to complete the sentence : On electrolysis , Ag^(1+) & H^(1+) ions migrate to the ______[cathode / anode] & ______ [Ag^(1+) // H^(1+)] are discharged.

Select the correct word from the words in bracket to complete the sentence: Electrolysis is a/an _______[oxidation / reduction /redox] reaction in which reduction reaction takes place at the ________[cathode/anode]

Select the correct word from the words in bracket A metal which reacts with an alkali to liberate hydrogen. [iron/copper / aluminium]

Select the correct answer from the choice in bracket to complete each sentence:- A- [proton/neutron] is a sub-atomic particle with no charge and unit mass.

Select the correct answer from the choice in bracket to complete each sentence: Dust in air is an example of________ [heterogeneous/homogeneous) mixture.